Winding boll



ATTORNEY.

Patented Sept. 6, 12:12

rrs'r JERRY U. FORBES, OF CINCINNATI, OHIO WINDING ROLL Application filed December 17, 1929. Serial No. 414,791.

.My invention relates to winding rolls used in the manufacture of paper and paper stock, and more especially to such rolls which are collapsible for removal'from a roll of paper '5- which has been wound on such a roll, and'is especially suitable for what are known as rewinding rolls driven from the periphery of theroll of paper rather than from the shaft or spindle of the roll.

The object of my invention is to produce a device of this character which will be simple, economical to construct and maintain, and convenient to operate, as well as to be as smooth and simple on its exterior as is practicably possible, avoiding difficulty in withdrawing froma roll, or starting a new roll, as well as avoiding tearing or marring of the paper, both in the winding operation and in the removal of the roll from the roll of paper. Other objects will appear in the following description.

I accomplishthese objects by the device il-.

lustrated, for example, in the accompanying drawing, in which Figure 1 is a side'elevation, the roll being shown as in expanded condition;

Fig. 2 is an axial longitudinal section on the plane of the line 22 of Fig. 1, inter mediate parts being omitted for lack of space of Fig. 1; v

Fig. 3' is a similar section on the plane of the line 38 of Fig. 2, or at right angles tothe plane of the section in Fig. 2;

Fig. 4 is a detail inner end view of the left end member;

Fig. 5 is a right hand end view of theleft end hub;

Fig. 6 is a similar view of one of the broken away and understood tobe of any re- 3 and the view being on a larger scale than that quired length to be received in suitable guides or bearings and to receive such end thrust collars or the like as may be necessary, has around it the two shell sections 2 and 3, each somewhat less than half circular in cross sec tion and of the proper length to receive paper of the desired width. One section 2 is fastened, in its end parts, by flat head countersunk screws 1 to theleft end hub 5 and to the right end hub 6, respectively. 1

The sides of these hubs 5 and 6 to which the one section 2 is screwed are concentric withthe shaft 1, relatively to which the hubs 5 and 6 and attached shell section 2'are rotatable. The opposite sides 7 of these hubs 5 and 6 are reduced on an eccentric radius permitting the other shell section 3 to move inward from a position concentric with the shaft-1 and the shell section 2; as also is per mitted by having the sections 2 and 3 collectively of less than a full circle in cross section.

The inner ends of the hubs 5 and 6 have ridges 8 and 8, respectively, at opposite sides of shaft 1, parallel in direction of separation and approach of the sections 2 and 3. The U-shaped member 9 straddles the shaft 1 with the sides of its interior parallel in the direction of separation and approach of the sections 2 and 3; this interior opening toward the section 2 and the opposite part of the periphery is fixed, preferably by welding, to the interior of the opposite shell section 3. The parts'of its periphery adjacent its U- shaped'opening are eccentric to said opposite part of the periphery, as also is the curved bottom of this opening.

This U-shaped member 9 has in its left end grooves 10 parallel in the direction of approach and recession of the shell sections 2 and 3, receiving the respective ridges 8 of the left hub 5. The right end of this U-shaped member 9 has the large socket 11 eccentric to the shell section 3; preferably being concentric with the curved bottom of the open- 95 ing and the adjacent parts of the periphery, just mentioned.

Another kind of U-shaped member 12 is fixed inside the shell section 2 that is fastened. to the hubs 5 and 6, preferably being welded to this section 2. It straddles the shaft 1 with the insides parallel in the direction of recession and approach of the shell sections 2 and 3 and the curved bottom of its interior opening concentric with the shaft 1, while the portions of its periphery adjacent this opening are eccentric to the shell section 2 to which it is attached.

This U-shaped member has on its left end an extension 13 concentric with the shaft 1 and of radius considerably smaller than that of the socket 11 of the first described U-shaped member 9, in which socket this extension 13 is received. The opposite end of this U- shaped member 12 is plain.

The right end of the device has a similar arrangement. The U-shaped member 1 is like the member 9 before described, in having parallel grooves 10 receiving ridges 8 of t iright end hub 6, and in being fixed inside the same shell section 3. Its opposite end, however, is plain. Shortly to the left of the member-14 is the ll-shaped member like the left member 12, being fixed inside the section 2 and having the extension 13 to the left, like the extension 13 of the left member 12. The member 16 to the left of the member 15 is like the left member 9 in being fixed to the section 3 and having in its right end the socket 11 like the socket 11 of the left member 9, and receiving the left extension 13 of the member 15. The left end of this member 16 is plain.

At suitable locations in the intermediate parts of the length of the device additional pairs of llshaped members 15 and 16 are ar ranged as just described.

The shell sections 2 and 3 are pressed apart by means of the eccentric members 1.? fastened to the shaft 1 by pins 13 at such locations as to permit the assembly of the two sections and shaft by sliding the U-shaped members of the respective sections across each other first in a radial direction; and then axially toward each other until the sockets receive the extensions and the grooves receive the ridges of the several. members. The eccentricity of these members 17 is such with respect to the proportions and relative arrangement of the sockets and extensions of the Ushaped members that they will bring the shell sections 2 and 3 into concentric relation, in expanded condition, when the extensions 13 and 13 engage the corners 19 of the walls of the sockets 11 and 11, respectively. This engagement holds the shell sec tion 3 rigidly concentric with the shaft 1 and other section 2.

At the right hand end of the shell sections 2 and 3 the collar or end member 20 is fixed to the shaft 1 by a set screw 21, and at the left hand end the end member 22 is fixed to the shaft 1 by the set screw 23. The right hand end member 20 is an eccentric the periphery of which. will lie not farther out than the outer surfaces of the shell sections 2 and 3 when the latter are collapsed. The left end member 22 has a right hand end part 2% of the diameter of the expanded shell sections, and has a reduced hexagonal left end part 25, three sides of which preferably have holes 26 in them for turning the member 22 by means of a pin in absence of a wrench to be applied to the hexagonal part 25. The set screw 23 is in the larger circular part 24.

In the right hand end of this left end member are two segmental recesses or grooves 27 with ends on a diameter at right angles to the throw radius of the eccentric members 1?, from which ends the bottom of the grooves 27 slope out to the surface of the end of the member 22. In the left end of the left end hub 5 are two sockets 28 opposite on a diameter in the plane of separation of the two shell sections 2 and 3, each containing a spring 29 holding a plunger 30 toward the adjacent end member 22 to enter the grooves 27 thereof abruptly as the shaft 1 isturned in the direction of the arrow in Fig. 4f.

When these plungers 30 thus enter these grooves 27, the plungers, abutting the ends of the grooves, prevent relative turning of the shaft 1 and sections 2 and 3 in the direction opposite to that just indicated; and it will be seen that plungers 30 thus enter grooves 27 at each half turn of the shaft relative to the shell sections. turn the eccentrics 17 have expanded the device, and at the end of the next half turn they have allowed the device to collapse. The turning always is in the same direction, with the plungers 3O riding out of the grooves 27 on the inclined bottoms of the grooves. This snapping of the plungers 30 into the grooves 27 indicates, by sound, the end of a half turn of the shaft relative to the shell sections; so that the operator, who cannot see the shell sections when the'paper is wound thereon, can be sure of completion of the collapsing operation, and will not try to withdraw the device from the paper roll when insnfficiently collapsed, thereby avoiding tearing of the inside of the roll. And when the device again is to be expanded, the next snap of the plungers into the grooves positively indicates to the operator the full expansion and stable support of the shell sections ready for starting winding the next roll of paper,

It will be seen that all of theparts are of comparatively simple formation allowing them to be easily made and to be strong and durable. As several of the parts are duplicates, not so many difierent kinds of parts need be made, adding to the economy of manufacture of the device. Modifications may occur, and while I have illustrated and described a preferred example somewhat spe cifically, I do not wish to be understood as being limited to such precise disclosure, but what I claim as new and desire to secure by Letters Patent is:

At the end of one half 1 In a winding roll, a shaft, shell sections of arc-shaped cross section around said shaft, means directly attached to one section in which said shaft is directly journaled, and

means attached to said shaft to turn theremeans controlling the direction of turning of said shaft relatively to said sections.

3. In a winding roll, a shaft, shell sections of arc-shaped cross section around said shaft, means connecting one section to said shaft, means attached to said shaft for moving another one of said sections various distances from the one section byturning said shaft relatively to said sections, and automatically engaging means limiting the relative turning of said shaft and sections to one direction.

4. In a winding roll, a shaft, shell sections of arc-shaped cross section around said shaft, means for separating said sections radially from said shaft by turning said shaft in one direction relatively to said sections, and ratchet means concentric with said shaft, for causing said sections and shaft to rotate together in the opposite direction.

5. In a winding roll, a shaft, shell sections of arc-shaped cross section around said shaft, hubs surrounding said shaft and attached to respective end parts of one of said sections, engaging means to cause said shaft and hubs to turn together, and means attached to said shaft for repeatedly moving another one of said sections various distances from the one section by turning said' shaft continuously in one direction relatively to said sections, said engaging means being automatically releasable to permit said relative turning.

6. In a winding roll, a shaft, shell sections of arc-shaped cross section around said shaft, hubs surrounding said shaft and attached to respective end parts of one of said sections, engaging means to cause said shaft and hubs to turn together, and means attached to said shaft for moving another one of said sections various distances from the one section by turning said shaft relatively to said sections, said engaging means comprising a cam part and a yielding element riding into and out of said cam part upon relative rotation of said shaft and hubs in one direction, whereby it is releasable to permit the relative turning in the one direction but is automatically engageable to prevent the relative turning in the opposite direction, I y 7 7. In a winding roll, a shaft, shellsections of arc-shaped cross section around said shaft,

means connecting one section to said shaft, means attached to said shaft for moving another shell section variousdistances-from the one section byturning said shaft relatively to'said sections, and U-shaped members attached torthe insides of the respective sections, straddling said shaft, one member having an extension and the other member having a socket receiving said extension for limiting the degree of separation of said sections.

8. vIn a winding roll,a shaft, shell sections of arc-shaped cross sect-ion around said shaft, hubs surrounding said shaft and attached to respective end parts of, one of said sections, engaging means to cause said shaft and hubs to turn together, means attached to saidshaft for moving another one of said sectionsvarious distances from the one section by turning said shaft relatively to said sections, said engaging means being releasable to permit said relative turning, said hubs having guiding means, and U-shaped members attached to the inside of said other section, straddling said shaft, each having guiding means coacting with the guiding means of a respective hub'for guiding said sections relatively to each. other and causing said sections to rotate together.

9, In a winding roll, a shaft, shell sections of arc-shaped cross section around said shaft, means connecting one section to said shaft, means attached to said shaft for moving another section various distances from the one section'by turning said shaft. relatively to said sections, Ushap ed members attached to the insides of the respective sections, straddling said shaft, one member having an eX- tension and the other member having a socket receivingv said extension for limiting the degree of separation of said sections, and members fixed to said shaft at opposite ends of a said sections, holding said sections with said extension in sa1d socket.

10. In a winding roll, a shaft, shell sections of arc-shaped cross section around said shaft, hubs surrounding said shaft and attached to respective end parts of one of said sections, engaging means to cause said shaft and hubs to turn together, means attached to saidshaft for moving another one of said sections various distances from said one section by turning said shaft relatively tosaid sections, said engaging means being releasable to permit said relative turning, said hubs having guiding means, U-shaped members attached to the inside of said other section, straddling said shaft, each having guiding means coacting with the guiding means of a respective hub, and members fixed to said shaft-at opposite ends of said sections, holding said guiding means together.

11. In a winding roll, a shaft, shell sections of arc-shaped cross section around said shaft, means connecting one section to said shaft, means attached to said shaft for moving 5 another section various distances from the one section by turning said shaft relatively to said sections, axially separable means for limiting the degree of separation of said sections and for guiding said sections relatively to each other and causing said sections to rotate together, and members fixed to said shaft at opposite ends of said sections, holding said sections with said guiding and separation-limiting means in operative relation.

12. In a winding roll, a shaft, shell sections of arc-shaped cross section around said shaft, means connecting one section to said shaft, means attached to said shaft for moving another section various distances from the one section by turning said shaft relatively to said sections, axially separable means for limiting the degree of separation of said sections and for guiding said sections relatively to each other and causing said sections to rotate together, members fixed to said shaft at opposite ends of said sections, holding said sections with said guiding and separationlimiting means in operative relation, one of said members having a segmental cam recess 20 concentric with said shaft, and means yieldingly held toward said recess, by said one section, to ride into and out of said recess upon relative turning of said shaft and sections in one direction.

3 13. In a winding roll, a shaft, two shell sections collectively substantially less than circular cross section, around said shaft, hubs around said shaft, each with one side connected to one section, holding said one section concentric with said shaft, and with its other side of reduced radius, and an eccentric member attached to said shaft with its periphery adapted to engage the insides of said sections upon rotation of said shaft and sections relatively to each other.

14:. In a winding roll, a shaft, two. shell sections collectively substantially less than circular cross section, around said shaft, a series of eccentric members surrounding and fixed on said shaft at intervals therealong between said sections, and means for relatively guiding said sections whereby they are relatively moved various distances apart by said members upon rotation of said shaft and members relatively to said sections.

JERRY U. FORBES. 

